The clipping looks awfull on my set. So I would love to keep that as it is.
However, what I‘ll do is to make overstearing possible such that the curve saturates before 255.
I‘ll take a look into the rlpf. I have an idea where a bitshift error is. I ask you because it was never stable for me. (and also I’ve a weird feeling about it from what I‘ve learned about equalization in communication engineering, but that’s another point)
Will got you back soon.